/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineSessionInterface.h
Updates the localized settings/properties for the session in question
true if successful creating the session, false otherwise
bool UpdateSession ( [FName](API\Runtime\Core\UObject\FName) SessionName, [FOnlineSessionSettings](API\Plugins\OnlineSubsystem\FOnlineSessionSettings) & UpdatedSessionSettings, bool bShouldRefreshOnlineData )